Car-truck.



PATENTE) JULY 4, 1905. W. P. BETTENDORF. UAR TRUCK.

APPLIOATIQN FILED MAE. 25, 1904.

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no. "marea,

llamen Smarts Patented July t, 1905.

Pirrnn'r rrics..

l/VlLlilAll/l l. BllTlCNDltF, OF DAVENlOli/I, lOiVA.

SPECTL'FICATN forming part of Letters Patent No. '793,764, dated July da, 1901i,

Application iled March 25, 1904. Serial No. 199,999.

To rtl/ 7,071,072@ lll; mfr/y cm1/cera:

lie it known that l, ifi'rLL'I/nu l. .lmnimu Donn, a citizen el" the United States, and a resident of Davenport, in the county of Scott and State of Iowa, have invented certain new and useful lmprcnf'ements in Uar-lh'ucks, oitl which the following is a full, clear, and exact descriir tion.

'.lhe object of my invention is to provide a car-truck in which the journal-boxes and side frames of a pedestal-truck move imlependently of the journal-bearings and car-axles, and thereby avoid the construction hereto fore considered essential to obtain the :ulvantages of such a truck, as well as facilitate the building of a truck havingl a spring-bolster or a swing-motion bolster combined with the characteristics of a pedestal-trucl with an ease heretofore impossible. This l accomplish by the means hereinafter fully described and as particularly pointed out in the claims.

Yln the drawings, Figure 1l is a side view of the side 'frame of a truck having' my invention, showing one o'f the journal-boxes in transverse section. Fig. 2 is a plan View, on an enlarged scale, of one end of the same. Fig. 3 an end view thereof. Fig. 4 a longitudinal central section taken on dotted line a 4L, l? il and 2, looking in the direction indicated by the arrows.

Vln the drawings, A represents a side `frame for car-trucks, which is shown as east in one piece of metal, although l desire to be understood that this construction is not essential to my invention.

B B represent journal-boxes, preferably cast integral with the ends of the side iframe, with the bodies thereof built to correspond with that of the journal-box known as the L Master Uanuilders journal-box and substantially as shown and described in Letters latent No. 740,617, granted to me October 6, 2190?. My invention, however, is not confined to journal-boxes of this type, but may be apu plied to any type or style whether made integral with the si de frames or constructed in such manner as to be permanently fastened to the same. The only change deemed advisable is the increase in vertical dimensions of height of the axle-opening a m the rear of the box.

The axle C projects into the box in the same manner as heretofore and is engaged in the usual manner by an ordinary journal-bearing I, which is keyed in position by a wedge cof the usual construction, preferalgily having a flat top.

Preferably cast in one piece with and arising from the top of the i('mrnal-box is a suit able dome or spring-chamber l), whiehl prefer to make cylindrical with the axis thereof at right angles to the axis of the axle and in a transverse plane, preferably intersecting a point near the center of length of the journal of the axle. The exact location of this springchamber l) and its exact construction as herein set forth are not essential. They may be changed to suit the requirements of any particular ease. Seated on the wedge is a circular spring-seat lil, whose upper Aflanged portion is about the same in diameter as the width of the interior of the journal-box and normally enters slightly into thel lower end of the spri ngehambcr and limits the upward movement of the journal-box by coming in contact with the upper ends of the gu ide-lugs fr fr, that are engaged by the journal-bearing. 'lhe top of this spring-seat is provided with an L-shaped lug (Z, which has the end ol. its overhanging portion bifurcated. en pportcd on this springseat are concentric spiral springs F, that extend to the top of the chamber, where they are provided with a suitable spring-cap e. lhese springs F are compressed between the spring-seat and the cap J tothe extent su'llicient to enable them to support the ordinary load compression before they are inserted in the journal-lmx, and they are held. in this compressed position by an inverted belt Cl', the head of which is caught under the bifureated overhanging end of lug d and the upper scre\v-tln'eaded end of which extends throi'lgh the central opening in the central countersunk portion 7" of the cap and is provided with a suitable nut (7. The assembled springplate, springs, and spring-cap when thus asn sembled are inserted down through the top of the spring-ehamber l) until the spring-seat rests upon the wedge c, whereupon the side :frame is lifted until the edges of the cap c rest in the seat made by rabbeting the inner ICO circumference ofthe upper edge of the springchamber. In this position the springs are confined in the spring-chamber by means of a cover H, whose outer circumferential edges are fianged downward past the outwardlyprojecting flange /t of the upper edge of the spring-chamber and then turn inward and are caught under the shoulder formed by the Harige 7L. rl`his cover is provided with a eentral dome I, which is located over the depressed central portion f of the cap e and communicates therewith in such manner as to form a closed chamber within which the upper end of the bolt G can play. Considering the construction of the flanged edges r of this cover it would be impossible for it to be fitted down over the flange /t of the upper end of the spring-chamber were it made only in one piece. I have thereforedivided it into two equal sections and have between said dome and the outer circumference provided each with vertical web J, arising from their meeting edges, and secure said cover in place by bringing the two sections thereof laterally together in such manner that the flanged edges thereof will catch under the flanged edge /1/ of the spring-chamber and then bolt these two sections together by means of the bolts or rivets K, which pass through said webs.

If desired, the spring-seat might be dispensed with and the springs rest directly upon the wedge c. In fact, the entire construction of the invention as hereinbefore described may be modilied and changed without departing from the spirit of my invention, the principal feature of which is the cushioning of the axles within the journal-boxes so that the former may have vertical play in said journalboxes independent of the same and the side frame of the truck.

That I claim as new isl. A car-truck comprising side frames having integral journal-boxes made of one body of metal therewith, and axles journaled in said boxes and movable vertically independent of said boxes.

2. A car-truck comprising' side frames having integral journal-boxes made of one body of metal therewith, ear-axles journaled in said boxes and coil-springs disposed wholly within said boxes whereby said axles have a vertical movement independent of said boxes.

3. A car-truck comprising side frames, having integral journal-boxes made of one body of metal therewith, car-axles journaled in said boxes, and coil-springs inclosed wholly within said boxes and placed above and interposed between the jou rnals of said axles and the tops of said boxes.

4. A car truck comprising side frames, journal-boxes having ademe or spring-chamber in the top thereof extending above the plane of the ends of said side frame, car-axles journaled in said boxes and a spring in said boxes and domes thereof resting on said axles and supporting said boxes.

5. A car truck comprising side frames, journal-boxes rigidly secured thereto having a dome or spring-chamber in the top thereof extending above the plane of the ends of said side frame, car-axles journaled in said boxes and a spring in said boxes and domes thereof resting on said axles and supporting said boxes.

6. A car-truck comprising side frames, having integral journal-boxes made of one body of metal therewith and having a dome or spring-chamber in the top thereof, car-axles journaled in said boxes and a spring in the dome of each of said boxes resting on said axles and supporting said boxes.

7. A car-truck comprising side lframes, journal-boxes having a normally closed dome or spring-chamber in the top thereof extending above the plane of the ends of the side frame, car-axles journaled in said boxes and a spring in the dome of each of said boxes resting on said axles and supporting said boxes.

8. A car truck comprising side frames, journal-boxes rigidly secured thereto having a normally closed dome or spriug-clnunber in the top thereof extending' above the plane of the ends of the side frame, car-axles journaled in said boxes and a spring in the dome of each of said boxes resting on said axles and supporting said boxes.

9. A car-truck comprising side frames, having integral journal-boxes made of one body of metal therewith and having a normally closed dome or spring-chamber in the top thereof extending above the plane of the ends of the side frame, car-axles journaled in said boxes and a spring in the dome of each of said boxes resting on said axles and supporting said boxes.

l0. A car-truck comprising side frames, journal-boxes having' a dome in the top thereof, caraxles journaled in said boxes, and means placed wholly within said boxes for cushioning said axles.

ll. A car-truck comprising side frames1 journal-boxes having a dome or spring-chamber in the top thereof extending above the plane of the ends of the side frame, ear-axles journaled in said boxes, springs inclosed within said dome or spring-chamber, and means independent of the load for retaining' said springs in a compressed condition therein.

12. A car-truck comprising side frames, journal-boxes having a dome or spring-chamber in the top thereof extending above the plane of the ends of the side frame, car-axles journaled in said boxes, springs ineloscd within said dome or chamber, spring-seats therefor supported above said axle, spring-caps above said springs and bolts for compressing said springs between said seats and caps.

13. A car-truck comprising side frames,

IOO

IIO

vean-ii im journal-boxes havingl a lerne or sprinwe'haniber in the top thereof, a Suitable eover closing' the upper endoil1 the same, ear-axles fonrnaled in said boxes, and springs inelosetl in said spring-chamber or dome, and interposed between said axles and the eover oil,l Said donne or chamber.

lt. A ear-truek comprising' Sit-le trames, jimrnal-liioxes having' a (lonle or spring-charnber in the top thereof, a Suitable. Split eover closing` the upper en l el1 the Same, ear-axles 'ionrnaleil in Saiifl boxes andv springs ineloseil Vin said Spriing-chamber or llolne and interposed betweel'l Said axles and the cover ol Said lerne or eharnber.

15. lll. ear-truck comprising Side frames, jonrl'ml-boxes having a dome or Spring-chan)- ber in the top thereof the upper edges ol whieh are flanged ontwrn'il, a split eover closing the upper open enfl ol said Spring-ellamber and hav ine` outwarillv-extemling llangeil eilges the lower portions of which are inturneil, means .ler seerningl the sections o'l" said Split eover to- `:gether` and springs inelosed within Said (loine and interpoeed between Saicl axles and said eover.

'16. A ear-truck Comprising' side `frames, jfn'n'nal-boxes having a (lomo or mining-channher in the top thereof, a Split oever closing' the open top oll saiil chamber, Sin-ings ineloeeil within Said ehainber, and interijiosed between Saiil axles and said eover, and nieanStoi-hohling' said springs within said box in a eo1npressed eontlition,

lli', A ear-trneh eolnprising Snle frames, jonrnal-boxes havinga dome or sl'nfing-ehain ber in the top thereof, a split eover closing' the open top of sa'iil chain ber, springs inelosed within said ehalnber, and interyfioseil between said axle" anfl said cover, spring-seats there- Jfor suprmrteil on said axles, spring-(5ans interposeil between Saiil springe and Said eover, and bolts lor eennn'essil'le saiil springs between saiil seatel and Cape.

1S. A ear-truck eornprifing1 siile lranies, jonrlntbboxes having; a (lerne or Spring-ehanl ber in the top thereof, a split eover elosiln;l the npper open enil el said spring-e1`1mnber and havingI a central chamber therein, ear axles journaled insaiil boxes, springe inelosefl within said s-ipri11;reliannber, seatslmving'saill Springe Supported on Said axles, Capa inter posed between sairl springs and said eover and, having;l a eentrally-disposed portion eonnnnnieating' with the central ehalnber in the latter, and bolts lor eoinpreseing Saiil springe between Saiil Seatf and eaps the lower enil ol whieh is hehl immovable in said Seats.

ln testimony wheref'rt l have hereunto Set nl v hand this 9th (lay ol. Mai-eh, lll'lt. 

